The recovery of the Assyrian Empire from the time of confusion and hardship had begun, though slowly, as early as the end of the tenth century B.C. But Assyria's real expansion dates from the time of Aššurnaṣirpal II (883–859 B.C.). He recovered Assyria's former settlements in the land Na'iri, which had been seized by the Aramaeans in the days of his predecessors, and founded new colonies in North Syria. Likewise, his son Shalmaneser III (858–824 B.C.) restored the old Assyrian bases on the Euphrates and added to the colonies that he had built in the same region, designating them as his “royal cities”.
Yet the rising power of Assyria and its expansionist policy did not go unchallenged. The people whom the Neo-Assyrian kings attempted to subdue mustered their considerable strength to fight against the destructive might of the Assyrian army, and their strongly fortified cities were among the major sources of their power of resistance, as we are told in the Assyrian royal inscriptions. Kaprabi in the land of Bit-Adini, for example, is described as a well fortified city that had “hovered like a cloud in the sky”, while Pitura on the Tigris was, “exceedingly difficult; it was surrounded by two walls; its citadel had the form of mountain peak”. All these strong cities are designated as āl dannūti, “fortified city”, in the Neo-Assyrian royal inscriptions. When the ruler of a city is known, the city is designated as “his fortified city”, while a city of tribal people, whose country is only loosely organized, is usually called “their fortified city”, whether the name of the ruler of the city or land is known or not (see Table I).